1942-1953

  • The Manhatten District

    The Manhatten District was created in the middle of World War 2 in order to hide the creation of the atomic bomb.
  • The Big Inch Is Completed

    The Big Inch was the largest pipeline of its time and was created to help bring oil to war efforts. It was completed almost exactly a year after construction started.
  • Congress Passes The Synthetic Liquid Fuels Act

    Authorized the Secretary of Interior to operate plants that made fuels out of natural sources such as agriculture or oil shale.
  • Harry Truman Becomes President

    After the sudden death of President Franklin D. Roosevelt, Vice President, Harry Truman, was elected.
  • Germany Surrenders

    On May 7th, 1945, Germany officially surrendered to the Allies.
  • The First Nuclear Explosion

    A plutonium implosion bomb was detonated at a nuclear testing area in New Mexico.
  • Bombing of Hiroshima

    The United States dropped the uranium bomb known as Little Boy on Hiroshima Japan claiming around 70,000 lives.
  • Bombing of Nagasaki

    The United States dropped the plutonium bomb known as Fat Man on Nagasaki Japan claiming an estimated 60,000 lives.
  • Japan Surrenders

    Five days after the bombing of Nagasaki, Japan surrendered to the Allies.
  • Graphite Research Reactor Breakthrough

    A breakthrough was made at the Brookhaven National Library when scientists found a way to explore nuclear energy for a peaceful purpose.
  • Beginning of The Berlin Wall

    The Soviet Union began to build the Berlin Wall which separated West Berlin from the world.
  • Period: to

    Berlin Wall

    The Berlin wall lasted for 30 years and separated West Germany from East Germany.
  • Truman Is Re-Elected

    Harry Truman was re-elected as the United State's President and served a second term.
  • The Soviet Union Explodes A Nuclear Device

    On August 29th, 1949, the Soviet Union detonated their first nuclear bomb, thus setting the United States into a panic.
  • Scientists Begin Working On A Thermonuclear Weapon

    President Harry Truman ordered the AEC, (Atomic Energy Commission) to begin researching and developing a thermonuclear weapon.
  • North Korea Invades South Korea

    North Korea invades South Korea and starts the Korean War. This War lasted for three years.
  • Period: to

    The Korean War

    The Korean War was a war between North Korea and South Korea. The war started due to border clashes and rebellions.
  • The USS Nautilus

    The United States Navy's first nuclear-powered submarine officially joined the Navy fleets.
  • Dwight D. Eisenhower Becomes President

    As Harry Truman left the presidential seat, Dwight Eisenhower took his place.
  • The Heart-Lung Machine Is Invented.

    John Gibbon successfully performed open-heart surgery on a young woman, by using a cardiopulmonary bypass machine. (Also known as, The Heart-Lung Machine.)